CN201332327Y - Furnace water pump motor with cooling fin air cooling type heat shield - Google Patents
Furnace water pump motor with cooling fin air cooling type heat shield Download PDFInfo
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- CN201332327Y CN201332327Y CNU2009201428228U CN200920142822U CN201332327Y CN 201332327 Y CN201332327 Y CN 201332327Y CN U2009201428228 U CNU2009201428228 U CN U2009201428228U CN 200920142822 U CN200920142822 U CN 200920142822U CN 201332327 Y CN201332327 Y CN 201332327Y
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Abstract
The utility model relates to a furnace water pump motor with cooling fin air cooling type heat shields, resolving a problem that the cooling effectiveness of the existing air cooling type heat shield furnace water pump motor is not high. A motor output shaft between the furnace water pump and the motor is provided with a air cooling type heat shield with a cooling fin; the middle of the air cooling type heat shield is a tubular thermal neck, and the external cylinder face of the tubular thermal neck is provided with cooling fins uniformly; one end is an upper flange which is connected with a pump casing, the other end is a lower flange which is connected with the motor casing. The area of the cooling finis 80% to 150% of the circumferential surface area of the bottle neck. The heat transferred by the heat shield of the utility model from a high-temperature flange to the furnace water pump motor casing is reduced by 50% to 60% comparing with the conventional air cooling type heat shield.
Description
Technical field
The utility model relates to a kind of boiler pump motor of air-cooled type heat shielding.
Background technology
The stove water pump is the large turbo-type generator group, is installed in the visual plant that is used to carry HTHP stove water in the boiler main pipe system, and boiler water circulating pump motor (abbreviation boiler pump motor) is the drive motors of boiler water circulating pump.Large turbo-type generator group boiler water temperature is up to more than 300 ℃, and operating pressure reaches more than the 20MPa.Because the working medium that boiler water circulating pump is carried is the stove water of HTHP, the connection between pump case and the drive motors (boiler pump motor) can't be carried out effective seal partly with regard to present technology.Therefore the structure of no stuffing box is partly all adopted in the pump housing of stove water pump both domestic and external and the connection between the boiler pump motor, and pump case connects into a seal chamber that interconnects with the drive motors with closure with flange.
At present, the insulating material of boiler pump motor winding can't tolerate high temperature more than 300 ℃, so the stator of boiler pump motor and winding thereof need directly that sealing is installed in the cooling water, promptly so-called wet stator motor structure, and the temperature of cooling water will remain on below 80 ℃.The upper and lower cooling water of boiler pump motor adopts the cooling of dispelling the heat of closed cycle mode by the heat exchanger that is contained in the motor side for this reason, and the temperature of maintenance cooling water is no more than 80 ℃.For alleviating the burden of heat exchanger, between high temperature pump case more than 300 ℃ and the drive motors body below 80 ℃, be provided with the heat shielding section of trap heat, be commonly referred to heat shielding.Promptly shield the parts of the high temperature of pump case to the conduction of motor cavity.
At present, the heat shielding section of boiler pump motor has two kinds of structures both at home and abroad.A kind of is to be provided with a cooling jacket that passes to cooling water on the top of boiler pump motor, takes away the heat that passes under the high temperature pump housing, i.e. water-cooling pattern by cooling water.Another kind is an elongated tubular sections to be set (as an elongated necks on boiler pump motor top, with the shell of boiler pump motor be an integral body), elongated necks reduces heat conducting area as far as possible, and bigger area of dissipation is arranged again, take away the heat that passes under the high temperature pump case, i.e. air cooling mode by air.Air cooling mode heat shielding system configuration is simple, is reasonable manner comparatively.
Summary of the invention
In order to improve the boiler pump motor cooling effectiveness of air-cooled type heat shielding, the utility model provides a kind of boiler pump motor with heat-dissipating fin air-cooled type heat shielding.
Concrete architecture advances scheme is as follows:
Boiler pump motor with heat-dissipating fin air-cooled type heat shielding comprises pump case, motor and impeller, and impeller is located on the motor output shaft, and electric machine casing one side is connecting heat exchanger;
On the motor output shaft between stove water pump and the motor, be arranged with the air-cooled type heat shielding of band heat-dissipating fin; Air-cooled type heat shielding middle part is the hot neck of tubulose, is laid with heat-dissipating fin on the external cylindrical surface of the hot neck of tubulose; The one end is a upper flange, and upper flange is connected with pump case, and its other end is a lower flange, and lower flange is connected with electric machine casing.
The effective length of the hot neck of described tubulose is 1.4: 2 with the ratio of external diameter.
Be laid with 10-25 sheet heat-dissipating fin on the external cylindrical surface of the hot neck of described tubulose, the area of heat-dissipating fin adds up to the 80%-150% of hot neck circumferential area.
Compared with prior art, the utility model air-cooled type heat shielding partly is made up of two of the heat-dissipating fins that sealed pipe fittings and radiation near bottleneck shape around the axle distribute.Because the heat-dissipating fin that radiation distributes around the hot neck has increased the effective diameter D1 of bottleneck because rigidity becomes the ratio of 4 powers to increase with diameter, like this with regard to bigger increase the rigidity of heat shielding.Therefore can the extend length L of bottleneck reduces the tubular body diameter D2 of bottleneck, significantly improved the area of dissipation that thermal resistance has increased heat shielding again, the area of the utility model heat-dissipating fin be the bottleneck circumference surface area 80%～150%.Heat shielding in the utility model is selected reasonably distance, fin width, can form effective hot and cold convection current, takes away the axial flow of the heat of heat-dissipating fin, can improve heat-sinking capability 30～40%.Owing to improve thermal resistance and strengthen the heat radiation double action, the utility model heat shielding is delivered to the boiler pump motor housing from the high temperature flange heat is compared with traditional air-cooled type heat shielding and can be reduced 50%～60%.The raising of heat shielding effect; under stove water pump stopped status, (be the heat exchanger of cooling motor; idle online stand-by state) has even more important meaning; can intercept the heat that the high temperature pump case transmits; make the insulation of boiler pump motor avoid high temperature and scorch, improved the functional reliability of boiler pump motor.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is an air-cooled type heat-dissipating fin distribution schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1 and Fig. 2, the boiler pump motor with heat-dissipating fin air-cooled type heat shielding comprises pump case 7, impeller 5, has the heat exchanger 12 of the air-cooled type heat shielding 3 of heat-dissipating fin, electric machine casing 4, motor stator 9, rotor 10, motor windings 11, boiler pump motor one side.
On the motor output shaft between stove water pump and the motor, be set with the air-cooled type heat shielding 3 of band heat-dissipating fin; Air-cooled type heat shielding middle part is the hot neck of tubulose, is laid with 16 heat-dissipating fins 1 on the external cylindrical surface of the hot neck of tubulose, the height A=90mm of heat-dissipating fin, and thickness B=8mm sees Fig. 2.The one end is a upper flange 6, and upper flange 6 is connected with pump case 7, and its other end is a lower flange 8, and lower flange 8 is connected with electric machine casing 4.
Heat shielding effective length L=400mm, the overall diameter D2=280mm of the hot neck of tubulose, heat shielding diameter D1=460mm.Heat shielding effective length L is 1.42 times of hot neck overall diameter D2, and heat shielding area of dissipation (hot neck and heat-dissipating fin area sum) is 1.90 times of hot neck area of dissipation.Increase area of dissipation more than 80% than original air cooling heat shielding, add the axial flow passage between fin, quicken the convection current of cold and hot air, raising that therefore can be bigger the radiating effect of heat shielding, improve heat-sinking capability about 55%.Can reduce the generation of the fault that the motor windings insulation that causes to the conduction of motor cavity because of the high temperature of the pump housing scorches, reduce the stopping accident that causes thus.
Claims (3)
1, the boiler pump motor that has heat-dissipating fin air-cooled type heat shielding, the stove water pump comprises pump case, motor and impeller, and impeller is located on the motor output shaft, and electric machine casing one side is connecting heat exchanger, it is characterized in that:
On the motor output shaft between stove water pump and the motor, be arranged with the air-cooled type heat shielding of band heat-dissipating fin; Air-cooled type heat shielding middle part is the hot neck of tubulose, is laid with heat-dissipating fin on the external cylindrical surface of the hot neck of tubulose; The one end is a upper flange, and upper flange is connected with pump case, and its other end is a lower flange, and lower flange is connected with electric machine casing.
2, the boiler pump motor with heat-dissipating fin air-cooled type heat shielding according to claim 1 is characterized in that: the effective length of the hot neck of described tubulose is 1.4: 2 with the ratio of external diameter.
3, the boiler pump motor with heat-dissipating fin air-cooled type heat shielding according to claim 1, it is characterized in that: be laid with 10-25 sheet heat-dissipating fin on the external cylindrical surface of the hot neck of described tubulose, the area of heat-dissipating fin adds up to the 80%-150% of hot neck circumferential area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201428228U CN201332327Y (en) | 2009-01-21 | 2009-01-21 | Furnace water pump motor with cooling fin air cooling type heat shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201428228U CN201332327Y (en) | 2009-01-21 | 2009-01-21 | Furnace water pump motor with cooling fin air cooling type heat shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201332327Y true CN201332327Y (en) | 2009-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201428228U Expired - Fee Related CN201332327Y (en) | 2009-01-21 | 2009-01-21 | Furnace water pump motor with cooling fin air cooling type heat shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201332327Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907329A (en) * | 2016-08-30 | 2017-06-30 | 合肥新沪屏蔽泵有限公司 | A kind of Large Copacity high temperature and pressure test system canned motor pump |
| CN107218825A (en) * | 2017-05-25 | 2017-09-29 | 合肥皖化电泵有限公司 | A kind of BCP pumps with efficient heat exchanger |
| CN107246818A (en) * | 2017-05-25 | 2017-10-13 | 合肥皖化电泵有限公司 | A kind of boiler water circulating pump with adjustable heat exchanger |
| CN108916072A (en) * | 2018-07-27 | 2018-11-30 | 合肥皖化电机技术开发有限责任公司 | A kind of supplement heat rejecter circulator of furnace water pump |
| CN109038957A (en) * | 2017-06-11 | 2018-12-18 | 何巨堂 | The shield electric machine and its shielded electric pump of cold house outside electric machine casing inner stator half way |
| CN110017284A (en) * | 2018-01-06 | 2019-07-16 | 何巨堂 | There are 2 grades or centrifugal multistage pump multiple centrifugal pump of at least two difference lift leakage fluid dram |
| CN111509913A (en) * | 2019-12-24 | 2020-08-07 | 合肥皖化电机技术开发有限责任公司 | External circulation cooling method of coal-to-liquid circulating pump |
| CN113417848A (en) * | 2021-07-01 | 2021-09-21 | 哈尔滨电气动力装备有限公司 | Heat shield with ceramic fiber structure |
-
2009
- 2009-01-21 CN CNU2009201428228U patent/CN201332327Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907329A (en) * | 2016-08-30 | 2017-06-30 | 合肥新沪屏蔽泵有限公司 | A kind of Large Copacity high temperature and pressure test system canned motor pump |
| CN107218825A (en) * | 2017-05-25 | 2017-09-29 | 合肥皖化电泵有限公司 | A kind of BCP pumps with efficient heat exchanger |
| CN107246818A (en) * | 2017-05-25 | 2017-10-13 | 合肥皖化电泵有限公司 | A kind of boiler water circulating pump with adjustable heat exchanger |
| CN109038957A (en) * | 2017-06-11 | 2018-12-18 | 何巨堂 | The shield electric machine and its shielded electric pump of cold house outside electric machine casing inner stator half way |
| CN109038957B (en) * | 2017-06-11 | 2020-12-25 | 何巨堂 | Shielded motor of half-stroke external cooling chamber for motor shell internal stator and shielded electric pump thereof |
| CN110017284A (en) * | 2018-01-06 | 2019-07-16 | 何巨堂 | There are 2 grades or centrifugal multistage pump multiple centrifugal pump of at least two difference lift leakage fluid dram |
| CN108916072A (en) * | 2018-07-27 | 2018-11-30 | 合肥皖化电机技术开发有限责任公司 | A kind of supplement heat rejecter circulator of furnace water pump |
| CN111509913A (en) * | 2019-12-24 | 2020-08-07 | 合肥皖化电机技术开发有限责任公司 | External circulation cooling method of coal-to-liquid circulating pump |
| CN113417848A (en) * | 2021-07-01 | 2021-09-21 | 哈尔滨电气动力装备有限公司 | Heat shield with ceramic fiber structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20130121 |